采用verilog实现的三级CIC抽取器，输入8位数据，输出26位数据，使用有限状态机用于实现下采样，包括积分器实现模块和梳状器实现模块-Using verilog to achieve three CIC decimation filter, the input 8-bit data output 26-bit data, the use of finite state machines for sampling, including the integrator and comb to implement the module is implemented to achieve the next module